4 letters
- rues5
- rule6
- ruly8
- rump11
- rums8
- rune6
- runs6
- ruse5
- rush7
- ryas6
- ryes6
- sale5
- salp8
- same7
- samp10
- sane5
- saul6
- seal5
- seam7
- sear4
- sera4
- sham9
- shay8
- shea6
- shul8
- shun8
- slam8
- slap8
- slay7
- slue6
- slum9
- slur6
- snap8
- snye7
- spae7
- spam10
- span8
- spar7
- spay9
- spry9
- spue8
- spun9
- spur8
- suer5
- sulu7
- sump11
- supe8
- sura5
- sure5
- syne7
- syph11
- ulan7
- ulna7
- ulus7
- umps11
- unau7
- upas8
- urea5
- urns6
- ursa5
- urus6
- user5
- yams9
- yaps9
- yare6
- yarn7
- yaup10
- yeah8
- yean7
- year6
- yeas6
- yelp10
- yens7
- ylem10
- yuan8
- yule8
- yups10